Krayco Window Treatments professionally installed window film and window tint since 1983.Krayco Window Treatments is a leading installer of window film, window tint, and window shades and blinds. Since 1983, Krayco has helped thousands of homes and businesses keep cool in the summer and help reduce their utility bills.Large or small, we do it all Krayco Window Treatments has installed window films on thousands of windows in the Southeast South Dakota and Southwest Minnesota and Northwest Iowa areas, using only the highest quality materials from top manufacturers including llumar, llumar, 3M, Vista, and SunTek. We can apply film to arches, patio doors, skylights and irregularly-shaped windows.